Hi Kant, Clock synchronization is important - you should ensure that ntpd is properly configured on all nodes. If your particular use case is especially sensitive to out-of-order mutations it is possible to set timestamps on the client side using the drivers. https://docs.datastax.com/en/developer/java-driver/3.1/manual/query_timestamps/
We use our own NTP cluster to reduce clock drift as much as possible, but public NTP servers are good enough for most uses. https://www.instaclustr.com/blog/2015/11/05/apache-cassandra-synchronization/ Cheers, Justin On Thu, 9 Feb 2017 at 16:09 Kant Kodali <k...@peernova.com> wrote: > How does Cassandra achieve Linearizability with “Last write wins” > (conflict resolution methods based on time-of-day clocks) ? > > Relying on synchronized clocks are almost certainly non-linearizable, > because clock timestamps cannot be guaranteed to be consistent with actual > event ordering due to clock skew. isn't it? > > Thanks! > -- Justin Cameron Senior Software Engineer | Instaclustr This email has been sent on behalf of Instaclustr Pty Ltd (Australia) and Instaclustr Inc (USA). This email and any attachments may contain confidential and legally privileged information. If you are not the intended recipient, do not copy or disclose its content, but please reply to this email immediately and highlight the error to the sender and then immediately delete the message.
